package com.cong.security.config;

import java.sql.SQLException;

import javax.sql.DataSource;

import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceClientConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * 缓存Redis配置
 * 
 * @author single-聪
 * @date 2019年7月15日
 * @version 0.0.1
 */
@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {

	/**
	 * redisTemplate 序列化使用的jdkSerializeable, 存储二进制字节码, 所以自定义序列化类
	 * 
	 * @param lettuceConnectionFactory
	 * @return
	 */
	@Bean
	public RedisTemplate<Object, Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {
		RedisStandaloneConfiguration redisStandaloneConfiguration = lettuceConnectionFactory
				.getStandaloneConfiguration();
		LettuceClientConfiguration lettuceClientConfiguration = lettuceConnectionFactory.getClientConfiguration();
		// 默认分区为10
		redisStandaloneConfiguration.setDatabase(5);
		LettuceConnectionFactory connectionFactory = new LettuceConnectionFactory(redisStandaloneConfiguration,
				lettuceClientConfiguration);
		connectionFactory.afterPropertiesSet();

		RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
		// 使用Jackson2JsonRedisSerialize 替换默认序列化
		Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(
				Object.class);
		ObjectMapper objectMapper = new ObjectMapper();
		objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
		// 设置value的序列化规则和 key的序列化规则
		redisTemplate.setKeySerializer(new StringRedisSerializer());
		redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
		// hash参数序列化方式
		redisTemplate.setHashKeySerializer(new StringRedisSerializer());
		redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
		// 缓存支持回滚(事务管理)
		redisTemplate.setEnableTransactionSupport(true);
		redisTemplate.setConnectionFactory(lettuceConnectionFactory);
		redisTemplate.afterPropertiesSet();
		return redisTemplate;
	}

	// 配置事务管理器
	@Bean
	public PlatformTransactionManager transactionManager(DataSource dataSource) throws SQLException {
		return new DataSourceTransactionManager(dataSource);
	}
}
